diff --git a/src/test/base58_tests.cpp b/src/test/base58_tests.cpp
index 01eb2aee9..ac3ab4c83 100644
--- a/src/test/base58_tests.cpp
+++ b/src/test/base58_tests.cpp
@@ -121,7 +121,6 @@ public:
 BOOST_AUTO_TEST_CASE(base58_keys_valid_parse)
 {
     UniValue tests = read_json(std::string(json_tests::base58_keys_valid, json_tests::base58_keys_valid + sizeof(json_tests::base58_keys_valid)));
-    std::vector<unsigned char> result;
     CBitcoinSecret secret;
     CBitcoinAddress addr;
     SelectParams(CBaseChainParams::MAIN);
@@ -179,7 +178,6 @@ BOOST_AUTO_TEST_CASE(base58_keys_valid_parse)
 BOOST_AUTO_TEST_CASE(base58_keys_valid_gen)
 {
     UniValue tests = read_json(std::string(json_tests::base58_keys_valid, json_tests::base58_keys_valid + sizeof(json_tests::base58_keys_valid)));
-    std::vector<unsigned char> result;
 
     for (unsigned int idx = 0; idx < tests.size(); idx++) {
         UniValue test = tests[idx];
@@ -247,7 +245,6 @@ BOOST_AUTO_TEST_CASE(base58_keys_valid_gen)
 BOOST_AUTO_TEST_CASE(base58_keys_invalid)
 {
     UniValue tests = read_json(std::string(json_tests::base58_keys_invalid, json_tests::base58_keys_invalid + sizeof(json_tests::base58_keys_invalid))); // Negative testcases
-    std::vector<unsigned char> result;
     CBitcoinSecret secret;
     CBitcoinAddress addr;
 
diff --git a/src/test/pmt_tests.cpp b/src/test/pmt_tests.cpp
index 74ffe0cc7..e9c869174 100644
--- a/src/test/pmt_tests.cpp
+++ b/src/test/pmt_tests.cpp
@@ -122,7 +122,6 @@ BOOST_AUTO_TEST_CASE(pmt_malleability)
     std::vector<bool> vMatch = boost::assign::list_of(false)(false)(false)(false)(false)(false)(false)(false)(false)(true)(true)(false);
 
     CPartialMerkleTree tree(vTxid, vMatch);
-    std::vector<uint256> vTxid2;
     std::vector<unsigned int> vIndex;
     BOOST_CHECK(tree.ExtractMatches(vTxid, vIndex).IsNull());
 }
diff --git a/src/test/rpc_tests.cpp b/src/test/rpc_tests.cpp
index bbda6a48f..a15915aad 100644
--- a/src/test/rpc_tests.cpp
+++ b/src/test/rpc_tests.cpp
@@ -18,18 +18,6 @@
 
 using namespace std;
 
-UniValue
-createArgs(int nRequired, const char* address1=NULL, const char* address2=NULL)
-{
-    UniValue result(UniValue::VARR);
-    result.push_back(nRequired);
-    UniValue addresses(UniValue::VARR);
-    if (address1) addresses.push_back(address1);
-    if (address2) addresses.push_back(address2);
-    result.push_back(addresses);
-    return result;
-}
-
 UniValue CallRPC(string args)
 {
     vector<string> vArgs;
diff --git a/src/test/util_tests.cpp b/src/test/util_tests.cpp
index e467a4171..efd449874 100644
--- a/src/test/util_tests.cpp
+++ b/src/test/util_tests.cpp
@@ -243,11 +243,7 @@ BOOST_AUTO_TEST_CASE(util_IsHex)
 
 BOOST_AUTO_TEST_CASE(util_seed_insecure_rand)
 {
-    int i;
-    int count=0;
-
     seed_insecure_rand(true);
-
     for (int mod=2;mod<11;mod++)
     {
         int mask = 1;
@@ -256,10 +252,9 @@ BOOST_AUTO_TEST_CASE(util_seed_insecure_rand)
         //mask is 2^ceil(log2(mod))-1
         while(mask<mod-1)mask=(mask<<1)+1;
 
-        count = 0;
+        int count = 0;
         //How often does it get a zero from the uniform range [0,mod)?
-        for (i=0;i<10000;i++)
-        {
+        for (int i = 0; i < 10000; i++) {
             uint32_t rval;
             do{
                 rval=insecure_rand()&mask;